学术讲座

报告主题:Neural delays, moving objects and flash-lag

发布人:周仁来  发布时间:2012-11-09   浏览次数:14

各位老师:

您好!由实验室吴思老师邀请了School of PsychologyUniversity of Sussex心理学家、著名的flash-lag现象提出者Romi Nijhawan博士来实验室讲座,欢迎感兴趣的老师和同学去听。以下为讲座信息:

时间:1116日上午9:00

地点:小楼三层大会议室

报告人:Romi Nijhawan

报告主题:

Neural delays, moving  objects and flash-lag

报告摘要:There are non-trivial  delays in the transmission of neural signals from the retina to the higher  centers of the brain, and in the communication of “central commands” to the  muscles via descending pathways. These delays must be compensated if the animal  is to interact with the environment effectively. This is particularly so in  dynamic situations such as interception of moving objects. That some of the  delays are compensated within the motor system is well established. My research  has to do with whether, and how, the human and animal nervous systems compensate  for the delays within the vision pathways. In particular, I am interested in  understanding how the brain might exploit the temporal pattern in the changing  visual input (e.g. motion), and from it ‘predict’ the likely current, as opposed  to delayed, state of the input. These issues will be considered in the context  of the visual phenomenon known as the flash-lag effect in which a moving object  arriving at a given spatial position, the moment a flashed object is presented  at the same position, is seen in a position leading the flashed  object.